The ultimate solution for Shimano and other 64/104BCD cranks. If you have ever thought about running 1x9/10/11 and wondered how to solve chain retention, this is an answer. Its specially designed wide-narrow tooth profile keeps the chain really snug, allowing you to leave your chainkeeper in the garage. Always use a new chain with a new chainring.
Compatibility: All cranks with 4 x 64BCD interface
Material: CNC machined 7075 Txxx Aluminum
Finish: type II anodizing
Mounting holes: 4 x 64mm BCD
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